Box-fastener.



Patented Feb. l3, I900.

A. JAROLIMEK.

BOX FASTENER.

(Application filed Oct. 21Y 1899.)

2 Sheets-Sheet I.

(No Model.)

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No. 643,296. tttttttt Feb. I3, 1900-.

A. JARUILIMEK. v

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Unrrnn STATES PATENT @rricn.

ANTON J AROLIMEK, OF SEDLETZ, AUSTRIA-IIUNGARF.

BOX-*FASTENER.

SPECIFICATION forming part of Letters Patent N 0. 643,296, dated February 13, 1900. Application filed October 21, 1899. Serial No. 734,390. (No model.)

To aZZ whom it may concern/.-

Be it known that I, ANTON JAROLIMEK, chief officer, a resident of Sedletz, near K uttenberg,

Bohemia, Empire of Austria-Hungary, have invented a certain new and useful Box-Fastener; and I give a clear and full description of my invention, as follows:

My invention consists in the combination in and arrangement of devices hereinafter fully described, and particularly pointed out in the claims.

In the drawings, Figure 1 is a plan View of a chest having my invention attached. Fig. 2 is a vertical sectional view on line a b of Fig. 1. Fig. 3 is a plan view of a chest having my locking device at several points. Fig. 4 is a view of a section on line 0 d of Fig. 3. Fig. 5 is a sectional view on line a b of Fig. 6. Fig. 6 is a sectional view on line 0 d of Fig. 5. Fig. 7 is a sectional View on line c f of Fig. 6. Fig. 8 is a detail side view showing the use of a tool or instrument for opening or closing the locking mechanism.

The fastening devices may be situated in the four corners of the chest and Within the walls thereof, as shown at 00 in Figs. 1 and 2, or, as shown in Figs. 3 and 4, the fastening devices may be located at a greater number of points outside the walls of the chest, where they are covered by border-pieces y.

As shown in Figs. 5, 6, and 7, the fastening devices comprise spiral springs 5, which extend from the top to the bottom of the chest. These springs are connected with the cover and bottom of the chest, aswill hereinafter be described, and they are distended and secured in place under tension so as to hold the parts tightly in place. The springs are distended for this purpose to near the limit of their elasticity. The springs are held at their ends in recesses formed in the cover or bottom of the chest or in the borders before men tioned, and at the ends of the springs several coils or spiral turns are left undistended, and with these coils a nut engages, said nut being located in the recess within a casing or plate 2 in the recess, said nut being preferably in the form of a spiral made up of several coils. This spiral nut is shown at 3, and the end of the spring left unextended is shown at 4. The nut 3 rests upon the bottom of the plate or casing 2. 1 is a cap to protect the fastening in the recess, and this cap is secured in place in any suitable manner, so that if it is tampered with it will show at once that an attempt has been made to get at the fastening.

In order to undo the fastening, I provide a screw 6, Fig. 8, which screws into the coils 4 at the end of the spring, and then by a lever 8 and link 7 the screw maybe pulled upon to withdraw the end of the fastening from the recess, so that the nut 3 may be unscrewed, and thus the fastening undone. The springs being distended to almost the full limit of their elasticity prevent the cover of the box being thrown back or taken off while the nuts are in engagement with the ends of the same, and yet there is sufficient elasticity to permit, under a great strain, the withdrawal of the ends, with the nuts thereon, out of the socketpieces, so that access may be had to the nuts to unscrew the same.

I claim 1. The combination with a box having a cover with a socket therein, a spring secured at one end to the box and having its opposite end extending through the cover and normally held in the socket, a nut engaging said end also normally confined within the socket, the end of the spring with the nut thereon being adapted to be withdrawn from the socket so that access may be hadto the nut to unscrew the same.

2. The combination with a box having a cover with a socket therein, a spring secured at one end to the box having a portion thereof normally distended to nearly its full limit of elasticity and its opposite end formed of a series of coils not distended normally held in the socket, a nut engaging the end comprising a spiral coil, said end with the nut thereon being adapted to be withdrawn from the socket to give access to the nut.

33. The combination with a box having a cover with a socket therein, a spring secured at one end to the box having its intermediate portion distended to nearly the limit of its elasticity and its opposite end formed of a series of coils not distended normally held in the socket, a nut adapted to engage said end, said end being adapted to receive a tool whereby it may be withdrawn with the nut thereon from the socket to give access to the nut, substantially as described.

4. The combination With a box having sockets in opposite sides thereof, of a spring having an intermediate part distended to near ets to give access to the nuts, substantially as described.

In Witness whereof I have hereunto set my hand in presence of two witnesses.

ANTON J AROLIMEK.

Witnesses:

ADALR STEVENS, l ADOLPH FIsoHER. 

